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	Laser frequency aging compensation
	DEACON, DAVID A. G.
	2004-12-07
著作权人	INTEL CORPORATION
专利号	US6829264
国家	美国
文献子类	授权发明
其他题名	Laser frequency aging compensation
英文摘要	A semiconductor laser diode mounted to a heat sink body has a thermally resistive layer located between the two in order to provide a specified thermal impedance that balances the contrary responses to laser aging and changes in drive current. The required thermal impedance is determined by experimental trial on a plurality of identically mounted test structures differing only in their thermally resistive layer impedances, which are then operated to cause laser aging. The optical mode frequency output from the laser diodes in the test devices are measured under normal operating conditions at least before and after the laser aging, and the thermal impedance value that would result in a substantially zero change in laser output is calculated from these measurements. The resistive layer's thickness and/or doping level may be used to select the desired thermal impedance. As a result, the mounted laser device with this layer is characterized by an effective refractive index of the laser diode that remains substantially constant as the laser ages with constant operating conditions, and thus the device has an age-stable output frequency.
公开日期	2004-12-07
申请日期	2002-05-10
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/36873]
专题	半导体激光器专利数据库
作者单位	INTEL CORPORATION
推荐引用方式 GB/T 7714	DEACON, DAVID A. G.. Laser frequency aging compensation. US6829264. 2004-12-07.

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